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- One to three karst cycles may be recognized mostly at the top of the Upper Permian strata, top of the Middle Permian Maokouan strata and top of the Carboniferous strata and subordinately at the top of the Devonian strata. 这些古岩溶作用主要存在于上二叠统顶部、中二叠统茅口组顶部和石炭系顶部,其次是泥盆系的顶部。
- The Sedimentary Environment of Lucaogou Formation in Upper Permian in Santanghu Basin. 三塘湖盆地上二叠统芦草沟组沉积环境
- The Post-salt Sediment Group formed (Upper Permian to Quaternary) is composed mainly of clastic rocks, with carbonates locally. 晚二叠世以后形成的盐上层系沉积,主要??碎屑岩,在局部地区有碳酸盐岩。
- Coal in the Upper Permian Longtan Fm in southern Poyang depression is called bark coal, because it is rich in periblinite. 南鄱阳坳陷的上二叠统龙潭组煤层因富含树皮体而称之树皮煤。
- The sedimentary-petrologic province of Upper Permian(P2x) Xuanwei Formation in unconformity with the Emeishan basalts has good ore-search prospects. 区域上假整合覆盖于上二叠统峨眉山玄武岩之上的宣威组沉积岩系具有良好的找矿前景。
- Middle Upper Ordovician is one of the main target for oil/gas exploration in Tazhong area. 中上奥陶统是塔中地区最主要的油气勘探目的层之一。
- The basins contain 18 to 20 kilometers of pre Upper Permian carbonate and post Upper Permian siliciclastic sedimentary fill. 盆地包含18至20千米的二叠纪的碳酸岩和硅质碎屑沉积物。
- Comparisons with the chronical records of the volcanic ash layers contained in the middle upper part of the core suggest an age error less than 3%. 与冰芯中上部含深褐色火山灰冰层的历史记录年代相比误差小于3%25。
- At the south margin of the basin and around Nanshan Coal Mine, where used to be a depression of Late Permian, the Upper Permian source rock has become maturated. 盆地西北缘的中、下侏罗统生油岩处于未成熟-低成熟阶段,为潜在烃源岩。
- It is shown that it is in good assemblage and its crude oil originates from lacustrine source rocks of Lucaogou formation of Upper Permian, dominated by low-mature oil. 牛圈湖油田沉积与储盖组合良好。原油主要来自于上二叠统芦草沟组湖相烃源岩,以低成熟油为主。
- The distribution of the middle upper Zhangxia Formation, Cambrian in Yishui area, Shandong, is controlled by Yishui rift (including F 4 and F 3 faults). 山东沂水地区寒武系张夏组中上部地层的分布,受控于沂沭断裂(F4和F3断裂),分为西区、中区和东区。
- The Lower Permian Wangjiapu coal measures and the Upper Permian Leping coal measures in Northwest Jiangxi were formed in lacustrine environment in the epicontinental sea area. 赣西北地区下二叠统王家铺煤组和上二叠统乐平煤组,形成于陆缘海的湖泊沼泽环境。
- A shallow water smaller foraminifera fauna is studied from limestone intercalations of the upper Permian chert from Liuqiao area, Guangxi Zhuang Autonomous Region, China. 本文研究了广西扶绥县柳桥地区二叠纪末期的浅水相小有孔虫动物群。
- Organic matter heterogeneity was counted and studied for the fractured "in situ reservoir" samples of upper Permian series in Malang sag Santanghu basin. 三塘湖盆地马朗凹陷上二叠统芦草沟组油藏多为"自生自储"裂缝型油藏,油藏样品的实验分析揭示了油藏宏观、微观两种尺度上的"有机质"非均质性表现;
- The He 8(Member 8 of the Upper Permian Shihezi Formation) gas pool in the Sulige gas field of Ordos Basin is an inefficient fluvial facies gas pool drived by elasticity. 鄂尔多斯盆地苏里格气田盒8气藏为弹性驱动的河流相低效气藏,储层非均质性强,在开发中普遍见水。
- The middle upper Jurassic Jienu Group,distributed widely along Gerze Baingoin area of northern Xizang, is terrigenous deposit of remnant retroarc basin with a complete transgressive regressive cycle. 西藏北部改则班戈地区出露的中上侏罗统接奴群是残余弧后盆地的滨浅海相陆缘碎屑沉积,具有完整的水进水退沉积旋回。
- The comprehensive analyses showed that the Triassic reservoirs of the Tu Ha basin are mainly the Middle Upper Triassic feldspathic litharenite,and the pore types are dominated by s... 综合分析认为,吐哈盆地三叠系储层主要为中上三叠统长石质岩屑砂岩,孔隙类型以次生孔隙为主,储层物性相对较差,总体属于中孔-低渗或低孔-低渗性储层;
- In accordance with the chronological characteristics of biomarkers of crude oil,the authors propose that the Jurassic crude oil and Upper Permian crude oil can be identified by Diterpene index. 根据原油中生物标记物的年代学特征 ;提出利用二萜烷指数将侏罗系的原油 (二萜烷指数 >0 8)与上二叠统的原油 (二萜烷指数 <0 5 )加以区别的方法。
- Methods Based on comprehensive analysis of isopaches, sadstone percentage, paleocurrent and sadstone content, a reaserch is made on the sedimentary environment of Upper Permian Shiqianfeng Formation in the southern of north China. 方法根据岩石碎屑组分基本数据,运用地层厚度、砂岩百分含量、古水流、砂岩成分的系统分析方法。
